:root{
  --bg:#f7f8f6;--surface:#ffffff;--ink:#172019;--muted:#5d695f;--line:#dbe2dc;--accent:#1d6b46;--accent-2:#e6f2eb;--warn:#fff4d8;--danger:#fff0ef;--shadow:0 16px 40px rgba(20,40,28,.08);--radius:20px
}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;background:var(--bg);color:var(--ink);line-height:1.58}a{color:var(--accent);text-decoration-thickness:1px;text-underline-offset:3px}a:hover{text-decoration-thickness:2px}.wrap{width:min(1120px,calc(100% - 32px));margin:auto}.site-header{position:sticky;top:0;z-index:20;background:rgba(247,248,246,.94);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}.nav{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:68px}.brand{display:flex;align-items:center;gap:10px;color:var(--ink);font-weight:800;text-decoration:none}.brand-mark{width:34px;height:34px;border-radius:10px;background:var(--accent);display:grid;place-items:center;color:white;font-size:18px}.nav-links{display:flex;gap:18px;align-items:center;font-size:14px}.nav-links a{text-decoration:none;color:var(--muted)}.nav-links a:hover{color:var(--ink)}.hero{padding:74px 0 44px}.eyebrow{font-size:13px;font-weight:800;letter-spacing:.08em;text-transform:uppercase;color:var(--accent)}h1{font-size:clamp(38px,6vw,70px);line-height:1.02;letter-spacing:-.04em;margin:12px 0 18px;max-width:900px}h2{font-size:clamp(28px,4vw,42px);line-height:1.12;letter-spacing:-.025em;margin:0 0 16px}h3{font-size:22px;line-height:1.2;margin:0 0 10px}.lead{font-size:clamp(18px,2.2vw,23px);color:var(--muted);max-width:800px}.hero-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:26px;align-items:start}.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}.pad{padding:24px}.mini-card{padding:18px;border:1px solid var(--line);border-radius:16px;background:var(--surface)}.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.section{padding:40px 0}.section-lg{padding:64px 0}.muted{color:var(--muted)}.pill{display:inline-flex;align-items:center;gap:7px;background:var(--accent-2);color:var(--accent);font-size:13px;font-weight:800;padding:7px 10px;border-radius:999px}.cta{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 16px;border-radius:12px;background:var(--accent);color:white;text-decoration:none;font-weight:800;border:0;cursor:pointer}.cta.secondary{background:white;color:var(--accent);border:1px solid var(--line)}.cta:hover{filter:brightness(.98);text-decoration:none}.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.field label{display:block;font-weight:700;font-size:14px;margin-bottom:6px}.field input,.field select{width:100%;padding:13px 14px;border:1px solid #cfd7d0;border-radius:12px;background:white;color:var(--ink);font:inherit}.field small{display:block;color:var(--muted);margin-top:5px}.result-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px}.result{padding:16px;background:#f9fbf9;border:1px solid var(--line);border-radius:14px}.result b{display:block;font-size:23px;line-height:1.1;margin-top:5px}.notice{padding:15px 16px;border-radius:14px;background:var(--warn);border:1px solid #eed9a2}.danger{background:var(--danger);border-color:#efc8c4}.product{display:grid;grid-template-columns:1fr auto;gap:18px;align-items:center;padding:18px;border:1px solid var(--line);border-radius:16px;background:white}.product + .product{margin-top:12px}.product .meta{display:flex;gap:8px;flex-wrap:wrap;margin-top:8px}.badge{font-size:12px;font-weight:800;padding:5px 8px;border-radius:999px;background:#f0f3f0;color:#445047}.table-wrap{overflow:auto;border:1px solid var(--line);border-radius:16px;background:white}table{border-collapse:collapse;width:100%;min-width:680px}th,td{text-align:left;padding:13px 14px;border-bottom:1px solid var(--line);vertical-align:top}th{font-size:13px;text-transform:uppercase;letter-spacing:.05em;color:#56615a;background:#f4f7f4}tr:last-child td{border-bottom:0}.breadcrumbs{font-size:14px;color:var(--muted);padding-top:22px}.breadcrumbs a{color:var(--muted)}.article{max-width:820px}.article p,.article li{font-size:17px}.article h2{margin-top:42px}.article h3{margin-top:28px}.article ul,.article ol{padding-left:24px}.kicker{font-size:15px;color:var(--muted);margin-bottom:26px}.toc{padding:18px 20px;background:white;border:1px solid var(--line);border-radius:16px}.toc a{display:block;padding:4px 0}.footer{margin-top:70px;border-top:1px solid var(--line);padding:34px 0 52px;color:var(--muted);font-size:14px}.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:24px}.footer a{color:var(--muted)}.score{font-size:44px;font-weight:900;letter-spacing:-.05em}.small{font-size:13px}.hidden{display:none!important}
@media(max-width:860px){.hero-grid,.grid-3,.grid-2,.footer-grid{grid-template-columns:1fr}.nav-links{display:none}.form-grid{grid-template-columns:1fr}.result-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.hero{padding-top:48px}.product{grid-template-columns:1fr}.product .cta{width:100%}}
@media(max-width:520px){.wrap{width:min(100% - 22px,1120px)}.result-grid{grid-template-columns:1fr}.pad{padding:18px}h1{font-size:42px}}

/* NATISK 21 — UX/CRO */
.mobile-nav{display:none;position:relative}.mobile-nav summary{list-style:none;cursor:pointer;font-weight:800;color:var(--accent);padding:9px 11px;border:1px solid var(--line);border-radius:10px;background:var(--surface)}.mobile-nav summary::-webkit-details-marker{display:none}.mobile-nav-panel{position:absolute;right:0;top:48px;width:min(280px,calc(100vw - 32px));padding:10px;background:var(--surface);border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow)}.mobile-nav-panel a{display:block;padding:10px 9px;color:var(--ink);text-decoration:none;border-radius:9px}.mobile-nav-panel a:hover{background:var(--accent-2)}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible,.table-wrap:focus-visible{outline:3px solid rgba(29,107,70,.28);outline-offset:3px}
.calculator-card{scroll-margin-top:90px}.calc-head{display:flex;align-items:flex-start;justify-content:space-between;gap:18px}.calc-intro{max-width:700px;margin-bottom:0}.text-button{font:inherit;color:var(--accent);font-weight:800;background:transparent;border:0;padding:8px 0;cursor:pointer;text-decoration:underline;text-underline-offset:3px}.calc-group{border:0;padding:0;margin:26px 0 0}.calc-group legend{font-weight:900;font-size:15px;margin-bottom:12px}.calc-details{margin-top:16px;border:1px solid var(--line);border-radius:14px;background:#fbfcfb}.calc-details>summary{cursor:pointer;display:flex;align-items:center;justify-content:space-between;padding:14px 16px;list-style:none}.calc-details>summary::-webkit-details-marker{display:none}.calc-details>summary::after{content:'+';font-size:22px;font-weight:700;color:var(--accent);margin-left:12px}.calc-details[open]>summary::after{content:'−'}.calc-details summary span{display:flex;flex-direction:column;gap:2px}.calc-details summary small{font-weight:500;color:var(--muted)}.details-body{padding:0 16px 16px}.tool-explain{align-self:end;padding:12px 14px;background:var(--accent-2);border-radius:12px}.tool-explain p{margin:4px 0 0}.auto-note{font-size:13px;color:var(--muted);margin:14px 0 0}.calc-results{padding-top:28px}.calc-results h3{margin-bottom:12px}.primary-results{grid-template-columns:repeat(3,minmax(0,1fr))}.result-primary{background:var(--accent-2);border-color:#c7dfd0}.result-primary b{font-size:27px}.result-details{margin-top:12px}.result-details .result-grid{grid-template-columns:repeat(5,minmax(0,1fr))}.source-short{margin:12px 0 0}.section-heading{display:flex;justify-content:space-between;align-items:end;gap:18px}.section-heading h2{margin-bottom:0}.text-link{white-space:nowrap;font-weight:800}.compact-notice{font-size:14px}.scroll-hint{display:none;font-size:13px;color:var(--muted);margin-bottom:8px}

@media(max-width:860px){
  .mobile-nav{display:block}.nav-links{display:none}.nav{min-height:62px}.brand{font-size:14px}.hero-principle{margin-top:2px}.calc-head{display:block}.text-button{margin-top:2px}.primary-results{grid-template-columns:1fr 1fr}.primary-results .result:last-child{grid-column:1/-1}.result-details .result-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.section-heading{align-items:flex-start;flex-direction:column}.text-link{white-space:normal}.scroll-hint{display:block}.table-wrap{-webkit-overflow-scrolling:touch}
}
@media(max-width:520px){
  .hero{padding:34px 0 24px}.hero h1{font-size:38px}.lead{font-size:18px}.hero-grid{gap:18px}.hero .cta{padding:11px 13px}.calculator-card{scroll-margin-top:74px}.calc-details>summary{padding:13px 14px}.details-body{padding:0 14px 14px}.primary-results,.result-details .result-grid{grid-template-columns:1fr}.primary-results .result:last-child{grid-column:auto}.result-primary b{font-size:25px}.section{padding:30px 0}.section-lg{padding:46px 0}.footer{margin-top:48px}.product .cta{min-height:46px}
}